Temperature Dependence of Triplet-Triplet Annihilation Upconversion in Phospholipid Membranes.

ABSTRACT: Understanding the temperature dependency of triplet-triplet annihilation upconversion (TTA-UC) is important for optimizing biological applications of upconversion. Here the temperature dependency of red-to-blue TTA-UC is reported in a variety of neutral PEGylated phospholipid liposomes. In these systems a delicate balance between lateral diffusion rate of the dyes, annihilator aggregation, and sensitizer self-quenching leads to a volcano plot, with the maximum upconversion intensity occurring near the main order-disorder transition temperature of the lipid membrane.

SUBMITTER: Askes SH 

PROVIDER: S-EPMC5330659 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature